<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel="stylesheet" href="/web/css/css_10_28/position_relative.css">
<div id= 'p'>
	<div id ='c1'> div c1</div>
	<div id ='c2'> div c2</div>
	<div id ='c3'> div c3</div>
	<div id ='c4'> div c4</div>

</div>

</head>
<body>

</body>
</html>